- #1
Reety
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Member advised to use the homework template for posts in the homework sections of PF.
Equations: E=m*c* dTheta or T
Experiment: I had two beakers of water with one thermometer in each beaker. One beaker had boiling water and the other beaker had room temperature water. I also had a 100g mass.
I recorded T1 which was the intial temperature of the cold water.
I then put the mass of 100g into the boiling hot water and waited 30 seconds. I recorded this temperature as Tm which I assumed was the temperature of the 100g mass.
I then put the hot 100g mass into the cold water and recorded the maximum temperature rise and called this T2
I then worked out that E=mass of water x 4200*T2-T1
I then assumed that E of water = E of the mass
So then worked out that E=0.1kg*C*Tm-T2 and found a value for C
I then repeated this experiment for lower temperatures of Tm and therefore T2 and found a value for C... I found out that the lower temperatures of T got a lower specific heat capacity.. and the question is why?
My take on it so far is that when I lift the 100g mass out of the boiling water and put it into the cold beaker it transfers heat energy to the surroundings and the higher the temperature of Tm the more heat energy it transfers. Is this correct?
Thanks,
Reety.
Experiment: I had two beakers of water with one thermometer in each beaker. One beaker had boiling water and the other beaker had room temperature water. I also had a 100g mass.
I recorded T1 which was the intial temperature of the cold water.
I then put the mass of 100g into the boiling hot water and waited 30 seconds. I recorded this temperature as Tm which I assumed was the temperature of the 100g mass.
I then put the hot 100g mass into the cold water and recorded the maximum temperature rise and called this T2
I then worked out that E=mass of water x 4200*T2-T1
I then assumed that E of water = E of the mass
So then worked out that E=0.1kg*C*Tm-T2 and found a value for C
I then repeated this experiment for lower temperatures of Tm and therefore T2 and found a value for C... I found out that the lower temperatures of T got a lower specific heat capacity.. and the question is why?
My take on it so far is that when I lift the 100g mass out of the boiling water and put it into the cold beaker it transfers heat energy to the surroundings and the higher the temperature of Tm the more heat energy it transfers. Is this correct?
Thanks,
Reety.